Multiply a whole number by a mixed number.
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If you need to adapt or shorten this lesson for remote learning, we suggest prioritizing Anchor Task 1 (benefits from discussion) and Anchor Task 2 (can be done independently). Find more guidance on adapting our math curriculum for remote learning here.
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a. $${2\times4}$$
b. $${2\times{1\over3}}$$
c. $${2\times4}{1\over3}$$
Estimate the following products. Then solve.
a. $${3\times5{1\over4}}$$
b. $${4\times6{3\over5}}$$
c. $${5\times9{7\over10}}$$
Juliette decided to solve part (a) of Anchor Task #2 by doing the following:
$${3\times2{1\over4} =3\times\left(2+{1\over4}\right)=3\times{9\over4}}$$
Do you agree with Juliette’s strategy? Will it yield the same product?
Which strategy is more efficient, Juliette’s or the distributive property? What about for the other problems in Anchor Task #2?
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Solve. Show or explain your work.
1. $${4 \times 5{3\over8}}$$
2. $${3\times 4{3\over10}}$$
Grade 4 Mathematics > Module 5 > Topic G > Lesson 37 of the New York State Common Core Mathematics Curriculum from EngageNY and Great Minds. © 2015 Great Minds. Licensed by EngageNY of the New York State Education Department under the CC BY-NC-SA 3.0 US license. Accessed Dec. 2, 2016, 5:15 p.m..
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